Home
Class 12
CHEMISTRY
Represent symbolically the galvanic cell...

Represent symbolically the galvanic cells in which the following reaction occurs. Calculate the standard electromotive forces of the cells :
(2) `Fe+Sn^(2+)rarr Fe^(2+)+Sn`
Given : `E_(Fe^(2+)|Fe)^(@)=-0.44V, E_(Sn^(2+)|Zn)^(@)=-0.14V`,
`E_(Cu^(2+)|Cu)^(@)=0.34V, E_(Zn^(2+)|Zn)^(@)=-0.76V`,
`E_(H^(+)|(1)/(2)H_(2))^(@)=0.00V`.

Text Solution

Verified by Experts

In the reaction, Fe is oxidised to `Fe^(2+)`. So, the anode is `Fe|Fe^(2+)(aq). Sn^(2+)` is reduced to Sn. So, `Sn^(2+)|Sn` is the cathode. So, the symbolic presentation of the cell is : `Fe|Fe^(2+)(aq)||Sn^(2+)(aq)|Sn`
For the cell
`E_("cell")^(@)=E_("cathode")^(@)-E_("anode")^(@)=[-0.14-(-0.44)]=0.3`
Promotional Banner

Topper's Solved these Questions

  • ELECTROCHEMISTRY

    CHHAYA PUBLICATION|Exercise ADVANCED LEVEL NUMERICAL BANK|38 Videos

  • ELECTROCHEMISTRY

    CHHAYA PUBLICATION|Exercise ENTRANCE QUESTION BANK (WBJEE)|14 Videos

  • ELECTROCHEMISTRY

    CHHAYA PUBLICATION|Exercise SOLVED NCERT TEXTBOOK PROBLEMS (NCERT EXERCISE QUESTIONS)|35 Videos

  • D - AND F - BLOCK ELEMENTS

    CHHAYA PUBLICATION|Exercise PRACTICE SET 8 (Answer the following questions)|10 Videos

  • ENVIRONMENTAL CHEMISTRY

    CHHAYA PUBLICATION|Exercise PRACTICE SET 14(Answer the following questions)|6 Videos

Similar Questions

Explore conceptually related problems

Represent symbolically the galvanic cells in which the following reaction occurs. Calculate the standard electromotive forces of the cells : (1) Fe+CuSO_(4)rarr FeSO_(4)+Cu Given : E_(Fe^(2+)|Fe)^(@)=-0.44V, E_(Sn^(2+)|Zn)^(@)=-0.14V , E_(Cu^(2+)|Cu)^(@)=0.34V, E_(Zn^(2+)|Zn)^(@)=-0.76V , E_(H^(+)|(1)/(2)H_(2))^(@)=0.00V .

Represent symbolically the galvanic cells in which the following reaction occurs. Calculate the standard electromotive forces of the cells : (3) Zn+H_(2)SO_(4)rarr ZnSO_(4)+H_(2) Given : E_(Fe^(2+)|Fe)^(@)=-0.44V, E_(Sn^(2+)|Zn)^(@)=-0.14V , E_(Cu^(2+)|Cu)^(@)=0.34V, E_(Zn^(2+)|Zn)^(@)=-0.76V , E_(H^(+)|(1)/(2)H_(2))^(@)=0.00V .

What will be the standard electrode potential for the change, Fe^(3+)(aq)+e rarr Fe^(2+)(aq). Given : E_(Fe^(3+)|Fe)^(@)=-0.036V, E_(Fe^(2+)|Fe)^(@)=-0.439V

Calculate cell potential of Fe|Fe^(2+)(a=0.6)||Sn^(2+)(a=0.2)|Sn Given : E_(Fe^(2+)|Fe)^(@)=-0.44V, E_(Sn^(2+)|Sn)^(@)=+0.14V

Are the following reactions spontaneous? (a) Fe+Mg^(2+)rarr Fe^(2+)+Mg "Given : "E_(Fe^(2+)|Fe)^(@)=-0.44V, E_(Mg^(2+)|Mg)^(@)=-2.37V, E_(Cd^(2+)|Cd)^(@)=-0.40V, E_((1)/(2)Cl_(2)|Cl^(-))^(@)=+1.36V

The standard free energy of the reaction Fe(s)+Sn^(2+)(aq, 1M)rarr Fe^(2+)(aq, 1M)+Sn(s) is ("given : at "25^(@)C, E_(Fe^(2+)|Fe)^(@)=-0.44V and E_(Sn^(2+)|Sn)^(@)=-0.14V)-

Will Sn reduce Sn^(4)+ to Sn^(2+) ? [ Given E_(Sn^(2+)|Sn)^(@)=0.14V,E_(Sn^(4+)|Sn^(2+))^(@)= 0.15 V ]

Are the following reactions spontaneous? (b) Cd+Cl_(2)rarr Cd^(2+)+2Cl^(-) "Given : "E_(Fe^(2+)|Fe)^(@)=-0.44V, E_(Mg^(2+)|Mg)^(@)=-2.37V, E_(Cd^(2+)|Cd)^(@)=-0.40V, E_((1)/(2)Cl_(2)|Cl^(-))^(@)=+1.36V

Will the following reaction be spontaneous under standard conditions? (a) Fe+Mg^(2+)rarr Fe^(2+) +Mg (b) Cd+Cl_(2)rarrCd^(2+)+2Cl^(-) ["Given : "E_(Fe^(2+)|Fe)^(@)=-0.44V, E_(Mg^(2+)|Mg)=-2.37V, E_(Cd^(2+)|Cd)^(@)=-0.40V, E_((1)/(2)Cl_(2)|Cl^(-))^(@)=+1.36V]

Under standard conditions, which one of the reactions is not feasible (E_(Ni^(2+)|Ni)^(@)=-0.25V, E_(Cd^(2+)|Cd)^(@)=-0.4V, E_(Fe^(2+)|Fe)^(@)=-0.44V, E_(cu^(@+)|Cu)^(@)=+0.34V) -

CHHAYA PUBLICATION-ELECTROCHEMISTRY-HIGHER ORDER THINKING SKILL (HOTS) QUESTIONS
  1. Given : (5) D+H(2)SO(4)rarr X. Arrange the following elements in asc...

    Text Solution

    |

  2. Between (a) 0.01 (M) H(2)SO(4) and (b) 0.01 (M) H(3)PO(4) solution, wh...

    Text Solution

    |

  3. Represent symbolically the galvanic cells in which the following react...

    Text Solution

    |

  4. Represent symbolically the galvanic cells in which the following react...

    Text Solution

    |

  5. Represent symbolically the galvanic cells in which the following react...

    Text Solution

    |

  6. Given that, E(Zn^(2+)|Zn)^(@)=-0.76V, E(Cu^(2+)|Cu)^(@)=+0.34V, E(...

    Text Solution

    |

  7. Given that, E(Zn^(2+)|Zn)^(@)=-0.76V, E(Cu^(2+)|Cu)^(@)=+0.34V, E(...

    Text Solution

    |

  8. Given that, E(Zn^(2+)|Zn)^(@)=-0.76V, E(Cu^(2+)|Cu)^(@)=+0.34V, E(...

    Text Solution

    |

  9. Given that, E(Zn^(2+)|Zn)^(@)=-0.76V, E(Cu^(2+)|Cu)^(@)=+0.34V, E(...

    Text Solution

    |

  10. Given that, E(Zn^(2+)|Zn)^(@)=-0.76V, E(Cu^(2+)|Cu)^(@)=+0.34V, E(...

    Text Solution

    |

  11. Given that, E(Zn^(2+)|Zn)^(@)=-0.76V, E(Cu^(2+)|Cu)^(@)=+0.34V, E(...

    Text Solution

    |

  12. Given that : E(Ni^(2+)|Ni)^(@)=-0.25V, E(Cd^(2+)|Cd)^(@)=-0.40V, e(F...

    Text Solution

    |

  13. Given that : E(Ni^(2+)|Ni)^(@)=-0.25V, E(Cd^(2+)|Cd)^(@)=-0.40V, e(F...

    Text Solution

    |

  14. Given that : E(Ni^(2+)|Ni)^(@)=-0.25V, E(Cd^(2+)|Cd)^(@)=-0.40V, e(F...

    Text Solution

    |

  15. See whether the cell representation given below is in accordance with ...

    Text Solution

    |

  16. Obtain a relation between E(1)^(@), E(2)^(@) and E(3)^(@) , where E(1)...

    Text Solution

    |

  17. Why is the conductivity of 0.1 (N) HCl solution greater than 0.1 (N) ...

    Text Solution

    |

  18. Between 0.1 (M) NH(4)OH and 0.1 (M) NaOH solutions, which one has a gr...

    Text Solution

    |

  19. On the basis of following data, explain why Co(III) is not stable in a...

    Text Solution

    |

  20. Calomel electrode is represented as - Hg(l)|Hg(2)Cl(2)(s)|HCl(aq), It...

    Text Solution

    |